Gas-liquid separator and air conditioner

Abstract

The present disclosure provides a gas-liquid separator and an air conditioner, wherein the gas-liquid separator includes a separation tank, a gas output pipe, a molecular sieve bag and a limiting structure, wherein the side wall of the separation tank has a liquid inlet; the gas output pipe is located in the separation tank, and the gas output pipe has a circulation channel, one end of the circulation channel is connected to the top of the separation tank, and the other end of the circulation channel is connected to the inside of the separation tank, and in the height direction of the separation tank, the other end of the circulation channel is located above the liquid inlet; the limiting structure is located in the separation tank and outside the gas output pipe, and the limiting structure and the gas output pipe are an integrated structural component. The gas-liquid separator provided by the present disclosure can simplify the structure of the gas-liquid separator.

Description

Technical Field

[0001] The present disclosure relates to the technical field of refrigeration equipment, and in particular to a gas-liquid separator and an air conditioner. Background Art

[0002] An air conditioner is a device that regulates the temperature of ambient air. In air conditioners, the gas-liquid separator is an important component. Its function is to separate the small amount of incompletely evaporated refrigerant coming back from the evaporator from gas and liquid, ensuring that the liquid refrigerant will not be sucked into the compressor to cause liquid hammer, thereby avoiding damage to the compressor.

[0003] In the related art, the gas-liquid separator includes a separation tank, a gas output pipe, a baffle and a molecular sieve bag filled with a molecular sieve. Among them, the side wall of the separation tank has a liquid inlet. The gas output pipe is a U-shaped tube, the gas output pipe is located in the separation tank, and one end of the gas output pipe is plugged and brazed in the top of the separation tank, and the other end of the gas output pipe faces the top of the separation tank and is located below the top of the separation tank. The baffle is located in the separation tank, and one plate surface of the baffle is welded to the bottom of the separation tank. The other plate surface of the baffle is connected to the bottom of the curved section of the gas output pipe. The baffle is used to fix the gas output pipe in the separation tank without shaking. The molecular sieve bag is located in the middle of the separation tank and is tied to the gas output pipe by a clamp or a cable tie, steel wire, etc.

[0004] However, since the molecular sieve bag is tied to the gas output pipe by a clamp, a cable tie, a steel wire, etc., there is a risk of the sieve bag slipping off. Moreover, the gas output pipe needs to be limited by a baffle, and the baffle needs to be welded to the bottom of the separation tank, which also makes the assembly process of the above gas-liquid separator cumbersome. Utility Model Content

[0005] The embodiment of the present disclosure provides a gas-liquid separator and an air conditioner, which can simplify the structure of the gas-liquid separator. The technical solution is as follows:

[0006] An embodiment of the present disclosure provides a gas-liquid separator, which includes a separation tank, a gas output pipe, a molecular sieve bag and a limiting structure, wherein the side wall of the separation tank has a liquid inlet; the gas output pipe is located in the separation tank, and the gas output pipe has a flow channel, one end of the flow channel is connected to the top of the separation tank, and the other end of the flow channel is connected to the interior of the separation tank, and in the height direction of the separation tank, the other end of the flow channel is located above the liquid inlet; the limiting structure is located in the separation tank and outside the gas output pipe, the limiting structure and the gas output pipe are an integral structural member, in the height direction perpendicular to the separation tank, the limiting structure is respectively abutted against the opposite sides of the separation tank, and a accommodating space is formed between the limiting structure and the inner wall of the separation tank, and the accommodating space is located in the middle of the separation tank; the molecular sieve bag is located in the accommodating space.

[0007] In another implementation of the present disclosure, the limiting structure includes a connecting plate, a first bending plate, a second bending plate and a third bending plate, and the connecting plate is located on one side of the gas output pipe; the first bending plate and the second bending plate are respectively located on both sides of the connecting plate in the height direction of the separation tank, and both are bent from the side edge of the connecting plate to the first plate surface of the connecting plate, and the third bending plate is bent from one side edge of the connecting plate to the second plate surface of the connecting plate, and the first bending plate, the second bending plate and the third bending plate are respectively against the inner wall of the separation tank on one side away from the connecting plate, and the accommodating space is formed between the first bending plate, the connecting plate, the second bending plate and the inner wall of the separation tank.

[0008] In another implementation of the present disclosure, the first bent plate, the second bent plate, and the third bent plate are all perpendicular to the connecting plate.

[0009] In another implementation of the present disclosure, the third bent plate and the first bent plate are located on the same side of the connecting plate, and the third bent plate is located between the second bent plate and the top end of the separation tank.

[0010] In another implementation of the present disclosure, the symmetrical structure of the third bent plate relative to the connecting plate and the orthographic projection of the first bent plate on the bottom of the separation tank completely overlap with the orthographic projection of the second bent plate on the bottom of the separation tank.

[0011] In another implementation of the present disclosure, the gas output pipe is a straight pipe, and the axial direction of the gas output pipe is the same as the height direction of the separation tank; the connecting plate is parallel to or coplanar with the axial section of the gas output pipe.

[0012] In another implementation of the present disclosure, there are two limiting structures, and the two limiting structures are symmetrically distributed on both sides of the gas output pipe with the axis of the gas output pipe as the axis.

[0013] In another implementation of the present disclosure, the gas output pipe includes an inner shaft tube and an outer shaft tube connected to each other, the bottom of the outer shaft tube is closed and the top has an opening; one end of the inner shaft tube is located in the bottom of the outer shaft tube and is connected to the interior of the outer shaft tube, and the other end of the inner shaft tube extends out of the opening and is inserted into the top of the separation tank; an annular cavity is formed between the inner wall of the outer shaft tube and the outer wall of the inner shaft tube, and the annular cavity is connected to the interior of the inner shaft tube to form the flow channel.

[0014] In another implementation of the present disclosure, the gas-liquid separator further includes an oil absorber, the oil absorber is located in the bottom of the separation tank, and an outlet of the oil absorber is located in the bottom of the outer casing.

[0015] In another implementation of the present disclosure, an air conditioner is also provided, which includes a compressor, an indoor unit, an outdoor unit and a gas-liquid separator, the compressor is connected to the gas-liquid separator and the outdoor unit, respectively, the outdoor unit is connected to one end of the indoor unit, and the other end of the indoor unit is connected to the compressor, and the gas-liquid separator is the gas-liquid separator described above.

[0016] The technical solution provided by the embodiments of the present disclosure has the following beneficial effects:

[0017] Since the gas output pipe also includes a limiting structure, and in the height direction perpendicular to the separation tank, the limiting structure is respectively abutted against the opposite sides of the separation tank, and the limiting structure and the gas output pipe are an integrated structural member. In this way, after the gas output pipe is assembled in the separation tank, the limiting structure will abut against the opposite sides of the separation tank, so that the gas output pipe is limited in the separation tank without shaking, eliminating the need to set a baffle and other structures at the bottom of the gas output pipe, and the process of welding the baffle and the separation tank, thereby simplifying the assembly process of the gas-liquid separator. In addition, since a holding space is formed between the limiting structure and the inner wall of the separation tank, and the holding space is located in the middle of the separation tank, the molecular sieve bag can be accommodated by the holding space, so that the separation sieve bag is located in the middle of the separation tank, avoiding the use of steel wire ropes or cable ties to tie the molecular sieve bag to the gas output pipe, facilitating the fixation of the molecular sieve bag, and at the same time increasing the assembly stability of the molecular sieve bag and reducing the probability of its slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of a gas-liquid separator provided by the related technology;

[0020] Figure 2 is a schematic structural diagram of a gas-liquid separator provided in an embodiment of the present disclosure;

[0021] Figure 3 is a schematic diagram of the structure of a tube of a gas-liquid separator provided in an embodiment of the present disclosure;

[0022] Figure 4 yes Figure 2 The corresponding cross-sectional view after rotating 90°;

[0023] Figure 5 This is a schematic diagram of the pipe processing.

[0024] The symbols in the figure mean the following:

[0025] 1. Separation tank; 10. Liquid inlet; 11. Tank body; 12. Top cover; 13. Bottom cover;

[0026] 2. Gas output pipe; 20. Circulation channel; 21. Inner shaft tube; 22. Outer sleeve; 23. Annular cavity;

[0027] 3. Molecular sieve bags;

[0028] 4. Limiting structure; 40. Accommodating space; 41. Connecting plate; 42. First bending plate; 43. Second bending plate; 44. Third bending plate;

[0029] 5. Oil absorber. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0031] Figure 1 It is a structural diagram of a gas-liquid separator provided by the related technology. Figure 1 As shown, the gas-liquid separator comprises a separation tank 1, a gas output pipe 2, a baffle C and a molecular sieve bag 3 containing a molecular sieve. The refrigerant enters the separation tank 1 through a liquid inlet 10 on the side wall of the separation tank 1.

[0032] The gas output pipe 2 is an irregular U-shaped pipe. The gas output pipe 2 is located in the separation tank 1, and one end A of the gas output pipe 2 is inserted and brazed in the top of the separation tank 1, and the other end B of the gas output pipe 2 faces the top of the separation tank 1 and is located below one end A of the gas output pipe 2. The baffle C is located in the separation tank 1 and is connected to the bottom end of the separation tank 1. The baffle C is connected to the U-shaped bending section of the gas output pipe 2, and the baffle C is used to limit the gas output pipe. The molecular sieve bag 3 is located in the separation tank 1 and is tied to the gas output pipe 2 by a clamp or a cable tie, a steel wire, etc. During gas-liquid separation, the refrigerant enters the separation tank 1 from the liquid inlet 10, and the gas phase component in the refrigerant diffuses upward and enters the gas output pipe 2 through the other end B of the gas output pipe 2, and then is discharged from the gas-liquid separator from one end A of the gas output pipe 2, and the refrigerant completes gas-liquid separation. However, since the molecular sieve bag 3 is tied to the gas output pipe 2 by a clamp or a cable tie, a steel wire, etc., the molecular sieve bag 3 is at risk of slipping. Moreover, the gas output pipe 2 needs to be limited by a baffle C. When assembling the gas-liquid separator, it is necessary to first connect the baffle C to the gas output pipe 2 and then place it in the separation tank 1, and then weld the bottom end of the separation tank 1 to the tank body of the separation tank. The assembly process is cumbersome. To this end, the embodiment of the present disclosure provides a gas-liquid separator.

[0033] Figure 2 Schematic diagram of the structure of a gas-liquid separator provided in an embodiment of the present disclosure. Figure 2 As shown, the gas-liquid separator comprises a separation tank 1 , a gas output pipe 2 and a molecular sieve bag 3 , and a side wall of the separation tank 1 is provided with a liquid inlet 10 .

[0034] The gas output pipe 2 is located in the separation tank 1, and has a flow channel 20 in the gas output pipe 2. One end of the flow channel 20 is connected to the top of the separation tank 1, and the other end of the flow channel 20 is connected to the inside of the separation tank 1. In the height direction of the separation tank 1, the other end of the flow channel 20 is located above the liquid inlet 10.

[0035] The limiting structure 4 is located inside the separation tank 1 and outside the gas output pipe 2. The limiting structure 4 and the gas output pipe 2 are an integrated structure. In the height direction perpendicular to the separation tank 1, the limiting structure 4 abuts against opposite sides of the separation tank 1, and a holding space 40 is formed between the limiting structure 4 and the inner wall of the separation tank 1. The holding space 40 is located in the middle of the separation tank 1. The molecular sieve bag 3 is located in the holding space 40.

[0036] Since the gas output pipe 2 in the gas-liquid separator provided in the embodiment of the present disclosure includes a gas output pipe 2, and the gas output pipe 2 has a flow channel 20, during gas-liquid separation, the refrigerant is transported from the liquid inlet pipe to the separation tank 1, and the gas phase component in the refrigerant will float on the top of the separation tank 1, and then enter the flow channel 20 through one end of the flow channel 20, and be discharged from the separation tank 1 through the other end of the flow channel 20.

[0037] Furthermore, since the gas-liquid separator further includes a limiting structure 4, and in the axial direction perpendicular to the gas output pipe 2, the limiting structure 4 abuts against the opposite sides of the separation tank 1, respectively. Thus, after the gas output pipe 2 is assembled in the separation tank 1, the limiting structure 4 will abut against the opposite sides of the separation tank 1, thereby limiting the gas output pipe 2 in the separation tank 1 without shaking, eliminating the need to set a baffle and other structures in the gas output pipe 2, and simplifying the structure of the gas output pipe 2. Furthermore, since a holding space 40 is formed between the limiting structure 4 and the inner wall of the separation tank 1, the molecular sieve bag 3 can be accommodated by the holding space 40, avoiding the use of steel wire ropes or cable ties to tie the molecular sieve bag 3 to the gas output pipe 2, facilitating the fixation of the molecular sieve bag 3, and at the same time increasing the assembly stability of the molecular sieve bag 3 and reducing the probability of its slipping.

[0038] In this embodiment, in order to facilitate the assembly of the gas output pipe 2 and the like in the separation tank 1, the separation tank 1 includes a tank body 11, a top cover 12 and a bottom cover 13. The tank body 11 is a cylindrical structure, and both ends of the tank body 11 are open. The top cover 12 is sealed and welded to the opening at the top of the tank body 11. The bottom cover 13 is sealed and welded to the opening at the bottom of the tank body 11. A liquid inlet pipe is inserted into the liquid inlet 10 in the side wall of the tank body 11.

[0039] In other examples, the liquid inlet pipe can also be inserted into the top cover 12. The specific arrangement of the liquid inlet pipe is flexibly set according to the actual situation. The tank body 11 can also be in other shapes, such as a prismatic structure. However, the prismatic structure is relatively complex in arrangement and molding compared to the cylindrical structure.

[0040] Figure 3 is a schematic diagram of the structure of the tube of the gas-liquid separator provided in the embodiment of the present disclosure, combined with Figure 3Optionally, the limiting structure 4 includes a connecting plate 41, a first bent plate 42, a second bent plate 43 and a third bent plate 44. The connecting plate 41 is located outside one side of the gas output pipe 2 and is connected to the outer wall of the gas output pipe 2. The first bent plate 42 and the second bent plate 43 are respectively located on the opposite sides of the connecting plate 41 in the axial direction of the gas output pipe 2, and are both bent from the side of the connecting plate 41 to the first plate surface of the connecting plate 41. The third bent plate 44 is located on one side of the connecting plate 41 in the height direction of the separation tank 1, and is bent from one side of the connecting plate 41 to the second plate surface of the connecting plate 41. The first bent plate 42, the second bent plate 43 and the third bent plate 44 are respectively against the inner wall of the separation tank 1 on the side away from the connecting plate 41. A holding space 40 is formed between the first bent plate 42, the connecting plate 41, the second bent plate 43 and the inner wall of the separation tank 1.

[0041] In the above implementation, the connecting plate 41 is used to connect with the gas output pipe 2, and the first bent plate 42 and the second bent plate 43 are used to form a U-shaped structure with the connecting plate 41, so as to form a receiving space 40 for receiving the molecular sieve bag 3 between the U-shaped structure and the inner wall of the separation tank 1. The third bent plate 44 is used to limit the limiting structure 4 in the separation tank 1 together with the first bent plate 42 and the second bent plate 43.

[0042] In other examples, the limiting structure 4 may also be other structures, such as a box, etc., but the box is more complex than the above structure. Moreover, the connecting plate 41 in the limiting structure 4 may also be located at other positions of the gas output pipe 2, which depends on the specific structure of the gas output pipe 2 and the connecting plate 41. For example, when the gas output pipe 2 is a U-shaped pipe in the related art, the connecting plate 41 can be located in the U-shaped cavity of the gas output pipe 2. Or when the connecting plate 41 is an L-shaped plate, a certain pipe section of the gas output pipe 2 may also be located in the L-shaped cavity of the connecting plate 41. In other words, as long as the connecting plate 41 can be connected to the outer wall of a certain pipe section of the gas output pipe 2. The specific position of the connecting plate 41 can be flexibly set. In addition, the third bending plate 44 can be located on the same side of the connecting plate 41 as the first bending plate 42, and can also be located on the same side of the connecting plate 41 as the second bending plate 43.

[0043] In this embodiment, in order to simplify the structure of the limiting structure 4, the connecting plate 41 is a flat plate structure.

[0044] Optionally, the first bent plate 42, the second bent plate 43 and the third bent plate 44 are all perpendicular to the connecting plate 41. This makes it easy to position the first bent plate 42 and the second bent plate 43, thereby facilitating processing.

[0045] In other examples, the first bent plate 42 and the second bent plate 43 may be brought closer to each other, that is, the distance between the side of the first bent plate 42 away from the connecting plate 41 and the side of the second bent plate 43 away from the connecting plate 41 is smaller than the distance between the side of the first bent plate 42 connected to the connecting plate 41 and the side of the second bent plate 43 connected to the connecting plate 41. However, in this way, the first bent plate 42 and the second bent plate 43 formed after bending may not necessarily abut against the inner wall of the separation tank 1, which increases the difficulty of processing.

[0046] Optionally, the third bent plate 44 and the first bent plate 42 are located on the same side of the connecting plate 41 , and the third bent plate 44 is located between the second bent plate 43 and the top end of the separation tank 1 .

[0047] In the above implementation, the third bending plate 44 and the first bending plate 42 are arranged on the same side of the connecting plate 41, so that when the first bending plate 42 is bent on the connecting plate 41, the third bending plate 44 can be bent on the connecting plate 41 at the same time, thereby improving the manufacturing efficiency.

[0048] In other examples, the third bent plate 44 and the second bent plate 43 may be bent together from the same side of the connecting plate 41 in opposite directions, but this will reduce the area of ​​the second bent plate 43 and thus reduce the load-bearing capacity of the second bent plate 43 .

[0049] In this embodiment, in order to facilitate the rapid manufacture of the limiting structure 4, the symmetrical structure of the third bent plate 44 relative to the connecting plate 41 and the orthographic projection of the first bent plate 42 on the bottom of the separation tank 1 and the orthographic projection of the second bent plate 43 on the bottom of the separation tank 1 completely overlap. In this way, the limiting structure 4 can be directly obtained by bending the connecting plate 41 without adding other processing steps.

[0050] Optionally, the gas output pipe 2 is a straight pipe, and the axial direction of the gas output pipe 2 is the same as the height direction of the separation tank 1. The connecting plate 41 is parallel or coplanar with the axial section of the gas output pipe 2. This can further facilitate bending the limiting structure 4 on the basis of the connecting plate 41.

[0051] Figure 4 yes Figure 2 The corresponding cross-sectional view after rotating 90°, combined with Figure 4 Optionally, there are two limiting structures 4, and the two limiting structures 4 are connected to the outer wall of the gas output pipe 2 symmetrically with the axis of the gas output pipe 2 as the axis. In this way, not only can the limiting structures 4 be connected to the outside of the gas output pipe 2 in a balanced manner, but also the size of the accommodating space 40 can be further increased, and the contact area between the limiting structures 4 and the separation tank 1 can also be increased, thereby further improving the stability of the gas output pipe 2 in the separation tank 1.

[0052] Figure 5 This is a schematic diagram of the pipe processing, combined with Figure 5 In this embodiment, in order to facilitate the formation of the limiting structure 4, two flat plates can be symmetrically integrally formed on the outer walls of both sides of the gas output pipe 2, and then the upper and lower sides of each flat plate can be cut to obtain the connecting plate 41. The side of the connecting plate 41 close to the top of the separation tank 1 is cut into two parts along the axial direction of the gas output pipe 2, one part of which is bent toward the first plate surface of the connecting plate 41 to form a first bent plate 42, and the other part is bent toward the second plate surface of the connecting plate 41 to form a third bent plate 44. The side of the connecting plate 41 close to the bottom of the separation tank 1 is also bent toward the first plate surface of the connecting plate 41 to form a second bent plate 43. Then, the first bent plate 42, the second bent plate 43 and the third bent plate 44 can be in interference contact with the separation tank 1 to prevent the gas output pipe 2 from shaking, so that the gas output pipe 2 can be limited and installed in the separation tank 1.

[0053] In addition, in order to make the first bent plate 42, the second bent plate 43 and the third bent plate 44 fit well with the inner wall of the separation tank 1, the outer edges of the first bent plate 42, the second bent plate 43 and the third bent plate 44 facing the inner wall of the separation tank 1 are all arc-shaped structures.

[0054] See again Figure 4 Optionally, the gas output pipe 2 includes an inner shaft tube 21 and an outer sleeve 22 connected to each other, the bottom of the outer sleeve 22 is closed, and the top has an opening. One end of the inner shaft tube 21 is located in the bottom of the outer sleeve 22 and communicates with the inside of the outer sleeve 22, and the other end of the inner shaft tube 21 extends out of the opening and is inserted into the top of the separation tank 1. An annular cavity 23 is formed between the inner wall of the outer sleeve 22 and the outer wall of the inner shaft tube 21, and the annular cavity 23 is communicated with the inside of the inner shaft tube 21 to form a flow channel 20.

[0055] In the above implementation, the outer sleeve 22 is connected to the connecting plate 41 to provide a mounting base for the connecting plate 41. At the same time, the top opening of the outer sleeve 22 is used to allow the gaseous components in the refrigerant to enter the circulation channel 20. The inner shaft tube 21 is used to be connected to the top of the separation tank 1 so that the gaseous components in the refrigerant can be discharged from the separation tank 1.

[0056] Combination Figure 2 That is to say, when the gas-liquid separation is performed, the refrigerant is transported from the liquid inlet pipe to the separation tank 1, and the gas phase components in the refrigerant will float on the top of the separation tank 1. The liquid phase components in the refrigerant will fall to the bottom of the separation tank 1 due to gravity. The gas phase components in the refrigerant enter the flow channel 20 through the top opening of the outer sleeve 22, and are discharged from the separation tank 1 through the port at one end of the inner shaft tube 21 (the transport direction of the gas phase components can be seen in Figure 2 direction a).

[0057] In this embodiment, the inner shaft tube 21 and the outer sleeve 22 are coaxial. In this way, the gas output pipe 2 can be directly formed by coaxial pipes, so that the outlet of the flow channel 20 is concentrated at the center of the separation tank 1, avoiding the liquid inlet pipe.

[0058] In other examples, the gas output pipe 2 may also be other structures, such as a U-shaped pipe in the related art, etc. However, compared with the above-mentioned gas output pipe 2 structure, the U-shaped pipe occupies a larger space and may interfere with the liquid inlet pipe, etc.

[0059] Optionally, the gas-liquid separator further includes an oil absorber 5 , which is located in the bottom of the separation tank 1 , and an outlet of the oil absorber 5 is located in the bottom of the outer casing 22 .

[0060] In the above implementation, since the gas-liquid separator is generally arranged at the front end of the compressor, the refrigerant after passing through the gas-liquid separator enters the compressor. In order to lubricate the compressor, lubricating oil is generally mixed in the refrigerant. Since the density of the lubricating oil is relatively large, after the refrigerant enters the separation tank 1 through the liquid inlet pipe, the lubricating oil will be concentrated at the bottom of the separation tank 1. In this way, the lubricating oil in the separation tank 1 can be absorbed in the circulation channel 20 through the oil absorber 5, and is absorbed in the compressor together with the gas phase components in the refrigerant for lubrication of the compressor.

[0061] The following briefly introduces the working process of the gas-liquid separator provided in the embodiment of the present disclosure:

[0062] When the refrigerant enters the separation tank 1 from the liquid inlet pipe, the refrigerant will first collide with the outer wall of the gas output pipe 2. After the collision, the refrigerant accelerates the rapid separation of the gas phase and the liquid phase in the refrigerant. When the refrigerant passes through the molecular sieve bag 3, moisture can be absorbed. After the refrigerant falls to the bottom of the separation tank 1, the gas phase component and the liquid phase component in the refrigerant separate by themselves, and the separated gas phase component will diffuse upward in the separation tank 1. When the gas phase component diffuses to the top opening of the outer sleeve 22, it can enter the circulation channel 20 through the top opening of the outer sleeve 22, and then leave the gas-liquid separator through the inner shaft tube 21 to complete the gas-liquid separation of the refrigerant.

[0063] On the other hand, the embodiment of the present disclosure also provides an air conditioner, the air conditioner includes a compressor, an indoor unit, an outdoor unit and a gas-liquid separator, the compressor is connected to the gas-liquid separator and the outdoor unit respectively, the outdoor unit is connected to one end of the indoor unit, and the other end of the indoor unit is connected to the compressor. The gas-liquid separator is the gas-liquid separator mentioned above.

[0064] The above air conditioner has the same beneficial effects as the gas-liquid separator mentioned above, which will not be repeated here.

[0065] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A gas-liquid separator, characterized in that: The gas-liquid separator comprises a separation tank (1), a gas output pipe (2), a molecular sieve bag (3) and a limiting structure (4); the side wall of the separation tank (1) is provided with a liquid inlet (10); The gas output pipe (2) is located in the separation tank (1), and a circulation channel (20) is provided in the gas output pipe (2), one end of the circulation channel (20) is connected to the top of the separation tank (1), and the other end of the circulation channel (20) is connected to the inside of the separation tank (1), and in the height direction of the separation tank (1), the other end of the circulation channel (20) is located above the liquid inlet (10); The limiting structure (4) is located inside the separation tank (1) and outside the gas output pipe (2); the limiting structure (4) and the gas output pipe (2) are an integral structural component; in a height direction perpendicular to the separation tank (1), the limiting structure (4) is respectively in contact with two opposite sides of the separation tank (1); and a containing space (40) is formed between the limiting structure (4) and the inner wall of the separation tank (1); the containing space (40) is located in the middle of the separation tank (1); The molecular sieve bag (3) is located in the containing space (40).

2. The gas-liquid separator according to claim 1, characterized in that: The limiting structure (4) comprises a connecting plate (41), a first bent plate (42), a second bent plate (43) and a third bent plate (44); the connecting plate (41) is located on one side of the gas output pipe (2); The first bent plate (42) and the second bent plate (43) are respectively located on both sides of the connecting plate (41) in the height direction of the separation tank (1), and are both bent from the side edge of the connecting plate (41) to the first plate surface of the connecting plate (41); the third bent plate (44) is bent from one side edge of the connecting plate (41) to the second plate surface of the connecting plate (41); the first bent plate (42), the second bent plate (43) and the third bent plate (44) are respectively abutted against the inner wall of the separation tank (1) on the side away from the connecting plate (41); and the accommodating space (40) is formed between the first bent plate (42), the connecting plate (41), the second bent plate (43) and the inner wall of the separation tank (1).

3. The gas-liquid separator according to claim 2, characterized in that: The first bent plate (42), the second bent plate (43) and the third bent plate (44) are all perpendicular to the connecting plate (41).

4. The gas-liquid separator according to claim 3, characterized in that: The third bent plate (44) and the first bent plate (42) are located on the same side of the connecting plate (41), and the third bent plate (44) is located between the second bent plate (43) and the top end of the separation tank (1).

5. The gas-liquid separator according to claim 4, characterized in that: The symmetrical structure of the third bent plate (44) relative to the connecting plate (41) and the orthographic projection of the first bent plate (42) on the bottom of the separation tank (1) and the orthographic projection of the second bent plate (43) on the bottom of the separation tank (1) completely overlap.

6. The gas-liquid separator according to claim 5, characterized in that: The gas output pipe (2) is a straight pipe, and the axial direction of the gas output pipe (2) is the same as the height direction of the separation tank (1); The connecting plate (41) and the axial section of the gas output pipe (2) are parallel or coplanar.

7. The gas-liquid separator according to claim 6, characterized in that: There are two limit structures (4), and the two limit structures (4) are symmetrically distributed on both sides of the gas output pipe (2) with the axis of the gas output pipe (2) as the axis.

8. The gas-liquid separator according to any one of claims 1 to 7, characterized in that: The gas output pipe (2) comprises an inner shaft pipe (21) and an outer sleeve (22) which are connected to each other, wherein the bottom of the outer sleeve (22) is closed and the top has an opening; One end of the inner shaft tube (21) is located inside the bottom of the outer sleeve (22) and is in communication with the interior of the outer sleeve (22); the other end of the inner shaft tube (21) extends out of the opening and is inserted into the top end of the separation tank (1); An annular cavity (23) is formed between the inner wall of the outer sleeve (22) and the outer wall of the inner shaft tube (21); the annular cavity (23) and the interior of the inner shaft tube (21) are interconnected to form the circulation channel (20).

9. The gas-liquid separator according to claim 8, characterized in that: The gas-liquid separator further comprises an oil absorber (5), wherein the oil absorber (5) is located in the bottom of the separation tank (1), and an outlet of the oil absorber (5) is located in the bottom of the outer casing (22).

10. An air conditioner, characterized in that: The air conditioner includes a compressor, an indoor unit, an outdoor unit and a gas-liquid separator, the compressor is connected to the gas-liquid separator and the outdoor unit respectively, the outdoor unit is connected to one end of the indoor unit, and the other end of the indoor unit is connected to the compressor, and the gas-liquid separator is the gas-liquid separator according to any one of claims 1 to 9.

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